JP2535401B2 - Forming method of Al-based composite material - Google Patents
Forming method of Al-based composite materialInfo
- Publication number
- JP2535401B2 JP2535401B2 JP1037032A JP3703289A JP2535401B2 JP 2535401 B2 JP2535401 B2 JP 2535401B2 JP 1037032 A JP1037032 A JP 1037032A JP 3703289 A JP3703289 A JP 3703289A JP 2535401 B2 JP2535401 B2 JP 2535401B2
- Authority
- JP
- Japan
- Prior art keywords
- capsule
- powder
- composite material
- hip
- mixed powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002131 composite material Substances 0.000 title claims description 16
- 238000000034 method Methods 0.000 title claims description 12
- 239000002775 capsule Substances 0.000 claims description 49
- 239000000843 powder Substances 0.000 claims description 34
- 229910000838 Al alloy Inorganic materials 0.000 claims description 19
- 239000012779 reinforcing material Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000001513 hot isostatic pressing Methods 0.000 claims description 3
- 239000011812 mixed powder Substances 0.000 description 22
- 238000000465 moulding Methods 0.000 description 12
- 238000011282 treatment Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 5
- 238000007872 degassing Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 230000008602 contraction Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は熱間等方圧加圧（以下、HIPという。）によ
り一体成形されるAl基複合材の成形方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention relates to a method for molding an Al-based composite material integrally molded by hot isostatic pressing (hereinafter referred to as HIP).
（従来の技術） 軽量金属であるAl又はAl合金と、セラミクスのウィス
カや短繊維、セラミクス粒子等の強化材粉末とを複合一
体化したAl基複合材は、高比強度、高比弾性率、高疲労
強度、高耐摩耗性等の優れた機械的性質を有する。この
ため、軽量化高性能化が強く指向されている宇宙航空
機、自動車、OA機器などの部品や構造部材の材料とし
て、またスポーツ用品材料として注目を集めている。(Prior Art) An Al-based composite material in which Al or Al alloy, which is a lightweight metal, and reinforcing material powder such as whiskers and short fibers of ceramics and ceramic particles are integrally integrated has high specific strength, high specific elastic modulus, It has excellent mechanical properties such as high fatigue strength and high wear resistance. For this reason, it has been attracting attention as a material for parts and structural members of spacecraft, automobiles, OA equipment, etc., for which weight reduction and high performance are strongly aimed, and as a material for sports equipment.
前記Al基複合材の成形方法として、Al又はAl合金（以
下、単にAl合金という。）の粉末と強化材粉末との混合
粉末をHIP成形用カプセルに充填し、脱気し、密封した
後、HIPにより一体成形する方法がある。この際、前記
カプセルとして、通常、軟鋼製鋼管に軟鋼板製の底板と
蓋板とを溶接して作製された円筒状カプセルが使用され
ている。また、混合粉末のカプセルへの充填に当って
は、混合粉末は、通常の金属粉末とは異なり、タッピン
グのみでは緻密に充填することが難しいため、充填率を
上げることを目的としてプレスによって加圧充填されて
いる。尚、HIP成形後の複合材は、カプセル除去後、円
柱体に精整加工され、押出し加工等により種々の形状に
仕上げられる。As a method for molding the Al-based composite material, a powder mixture of Al or Al alloy (hereinafter, simply referred to as Al alloy) and a reinforcing material powder is filled in a HIP molding capsule, deaerated, and sealed, There is a method of integrally molding by HIP. At this time, as the capsule, a cylindrical capsule manufactured by welding a mild steel plate to a bottom plate and a lid plate made of mild steel is usually used. In addition, when filling the mixed powder into capsules, unlike ordinary metal powder, it is difficult to densely fill the mixture with tapping, so press it with a press to increase the filling rate. It is filled. The composite material after HIP molding is refined into a cylindrical body after removing the capsule, and finished into various shapes by extrusion processing or the like.
（発明が解決しようとする課題） しかしながら、混合粉末を充填したカプセルをHIPす
ると、Al合金の成形温度が低いため、HIP時にカプセル
が充分軟化せず、第３、４図に示すように不均一な収縮
が生じ、円柱形状の製品を得る場合、素材の削り代が大
となり、歩留りが極めて悪いという問題がある。特に充
填率が低い場合は著しい。(Problems to be solved by the invention) However, when the capsule filled with the mixed powder is HIPed, since the molding temperature of the Al alloy is low, the capsule is not sufficiently softened at the time of HIP, resulting in nonuniformity as shown in Figs. When a columnar product is obtained due to various shrinkages, there is a problem that the stock removal amount becomes large and the yield is extremely low. Especially when the filling rate is low.
尚、カプセル内の混合粉末を高加圧充填すればHIP時
のカプセルの不均一収縮は軽減されるが、カプセル内の
脱気および脱ガスが困難となる。このため、充填率を極
端に大きくすることができず、通常60％ないし70％とさ
れている。If the mixed powder in the capsule is filled under high pressure, uneven shrinkage of the capsule during HIP is reduced, but degassing and degassing in the capsule become difficult. For this reason, the filling rate cannot be extremely increased, and is usually 60% to 70%.
本発明はかかる問題点に鑑みなされたもので、歩留り
の高いAl基複合材のHIPにより成形方法を提供すること
を目的とする。The present invention has been made in view of the above problems, and an object thereof is to provide a molding method using HIP of an Al-based composite material having a high yield.
（課題を解決するための手段） 上記目的を達成するためになされた本発明のAl基複合
材の成形方法は、アルミニウム又はアルミニウム合金の
粉末と強化材粉末との混合粉末を円筒状カプセルに充填
し脱気し密封した後、熱間等方加圧により加圧成形する
Al基複合材の成形方法において、 前記カプセルはその側壁部が軸方向に収縮する蛇腹体
で形成されていることを発明の構成とするものである。(Means for Solving the Problems) A method for molding an Al-based composite material of the present invention made to achieve the above object is to fill a cylindrical capsule with a mixed powder of aluminum or aluminum alloy powder and a reinforcing material powder. After degassing and sealing, press forming by hot isostatic pressing
In the method of molding an Al-based composite material, the capsule is formed of a bellows body whose side wall portion contracts in the axial direction.
（作用） 本発明で使用するHIP成形用円筒状カプセルは、その
側壁部を軸方向に収縮する蛇腹体で形成したので、カプ
セルの径方向の強度を向上させることができ、HIP時に
は径方向をほとんど収縮させることなく、軸方向に大き
く収縮させることができる。しかも、軸方向の収縮を大
きく取ることができるので、カプセル中の混合粉末の充
填率が低い場合においても、高密度のAl基複合材を容易
に得ることができる。このため、充填率を上げるための
混合粉末の加圧工程を省くことが可能となる。また、充
填率が低いため、脱気が容易となる。(Operation) Since the HIP molding cylindrical capsule used in the present invention is formed of a bellows body that contracts the side wall portion in the axial direction, it is possible to improve the strength in the radial direction of the capsule, and the radial direction at the time of HIP is changed. It can be greatly contracted in the axial direction with almost no contraction. Moreover, since a large amount of shrinkage in the axial direction can be obtained, a high-density Al-based composite material can be easily obtained even when the filling rate of the mixed powder in the capsule is low. Therefore, it is possible to omit the step of pressing the mixed powder to increase the filling rate. Moreover, since the filling rate is low, deaeration becomes easy.
（実施例） 第１図は本発明に使用するHIP成形用カプセルの一例
を示したもので、円筒状の蛇腹体３によって側壁部２を
形成し、その一端に底板４を設け、他端に脱気管５を有
する蓋体６が設けられている。７は蛇腹体３の内周面の
波形凹部８に混合粉末が入らないようにするための筒状
網体である。該凹部８に粉末が入ると、カプセルの軸方
向収縮が妨げられ、カプセル内部に充填された混合粉末
が充分に固化成形されない。網体７の内側には混合粉末
９が収容されている。尚、前記蓋板６は、底板４が蛇腹
体３の一端に予め溶接された容器に前記網体７を内装
し、該網体７の内部に混合粉末９を装填した後、容器開
口端に溶接される。混合粉末の充填に当ってはプレス等
による加圧は不要であり、棒材により粉末を締める様に
するだけで十分である。これらの処理は大気中で行えば
よい。(Example) FIG. 1 shows an example of a HIP molding capsule used in the present invention, in which a side wall 2 is formed by a cylindrical bellows body 3, a bottom plate 4 is provided at one end thereof, and the other end is provided at the other end thereof. A lid 6 having a degassing pipe 5 is provided. Reference numeral 7 denotes a tubular net body for preventing the mixed powder from entering the corrugated concave portion 8 on the inner peripheral surface of the bellows body 3. When the powder enters the concave portion 8, the capsule is hindered from shrinking in the axial direction, so that the mixed powder filled in the capsule is not sufficiently solidified and molded. The powder mixture 9 is housed inside the mesh 7. In addition, the lid plate 6 has the bottom plate 4 welded to one end of the bellows body 3 in advance, and the net body 7 is housed in the container. Welded. When filling the mixed powder, pressurization by a press or the like is unnecessary, and it is sufficient to tighten the powder with a rod. These treatments may be performed in the atmosphere.
前記カプセル１は、塑性変形容易な金属板（例えばア
ルミニウム板、アルミニウム合金板、軟鋼板、ステンレ
ス鋼板、銅板、銅合金板）で製作される。網体７も同様
の金属線材で形成されたものが使用される。The capsule 1 is made of a metal plate that is easily plastically deformed (for example, an aluminum plate, an aluminum alloy plate, a mild steel plate, a stainless steel plate, a copper plate, a copper alloy plate). The mesh 7 is also made of the same metal wire.
尚、蛇腹体３の壁面屈曲形状は図示のような円弧波形
状に限らず、三角波形状等でもよく自由である。The curved shape of the wall surface of the bellows body 3 is not limited to the arcuate wave shape as shown, but may be a triangular wave shape or the like.
前記混合粉末９は、既述の通り、Al合金粉末と強化材
粉末とを混合したものであるが、Al合金としては、6061
材、7075材等種々のものを利用することができ、一方強
化材粉末としては、SiC,Si3N4,Al2O3,Al2O3＋SiO2等の
セラミクスのウィスカや粒子、その他各種金属短繊維や
ウィスカを利用することができる。As described above, the mixed powder 9 is a mixture of Al alloy powder and reinforcing material powder.
Materials, 7075 materials, etc. can be used, while as reinforcing material powder, whiskers and particles of ceramics such as SiC, Si 3 N 4 , Al 2 O 3 , Al 2 O 3 + SiO 2 and various other Short metal fibers and whiskers can be used.
Al合金粉末と強化材粉末との混合比は、強化材粉末の
体積含有率を10〜50％程度とするのがよい。10％未満で
は強化能が不足し、一方50％を越えると複合材の延性、
靭性の低下が著しく、また加工の困難性が増大する。The mixing ratio of the Al alloy powder and the reinforcing material powder is preferably such that the volume content of the reinforcing material powder is about 10 to 50%. If it is less than 10%, the strengthening ability is insufficient, while if it exceeds 50%, the ductility of the composite material,
The toughness is remarkably reduced, and the difficulty of processing increases.
混合粉末９はAl合金粉末と強化材粉末とが均一に分散
混合されたものをカプセルに充填するのがよい。As the mixed powder 9, it is preferable to fill the capsule with the Al alloy powder and the reinforcing material powder uniformly dispersed and mixed.
Al合金粉末とセラミックス強化材粉末とを均一に混合
する好適な方法として、特開昭60−251922号において開
示されている通り、有機溶媒中で強化材に超音波振動を
与えて絡まりを解きほぐし、この中にAl合金粉末を加え
て撹拌し、得られた混合スラリーを吸引濾過し、ケーキ
を真空乾燥する方法がある。As a suitable method for uniformly mixing the Al alloy powder and the ceramics reinforcing material powder, as disclosed in JP-A-60-251922, ultrasonic waves are applied to the reinforcing material in an organic solvent to loosen the entanglement, There is a method in which Al alloy powder is added to this and stirred, and the resulting mixed slurry is suction filtered and the cake is vacuum dried.
また、混合粉末として、強化材粉末がAl合金粉末中に
均一に分散すると共に有機バインダーによって粒状（好
ましくは粒径0.1〜5mm程度）に保形された混合ペレット
を脱バインダーとして用いることができる。該混合ペレ
ットは本出願人が特願昭62−173695号（特開平１−1783
0号）で提案したものであり、混合体のハンドリング過
程で生じた振動や衝撃によって、強化材と金属粉末とが
分離したり、偏在することがなく、成分の均一性が確保
され、カプセルへの充填性や成形性にも優れる。As the mixed powder, a mixed pellet in which the reinforcing material powder is uniformly dispersed in the Al alloy powder and the granular shape is maintained by the organic binder (preferably a particle size of about 0.1 to 5 mm) can be used as the debinder. The mixed pellets of the present applicant are disclosed in Japanese Patent Application No. 173695/1987
No. 0), the reinforcing material and the metal powder are not separated or unevenly distributed due to the vibration or shock generated in the handling process of the mixture, and the uniformity of the components is ensured. Also has excellent filling properties and moldability.
前記混合粉末をカプセルに充填後、蓋板６の脱気管５
よりカプセル内部の空気を脱気する。この際、カプセル
を加熱しておくとよい。脱気後、脱気管５を圧着して密
封した後、HIP処理を行う。After filling the capsule with the mixed powder, the deaeration tube 5 of the lid plate 6
More deaerate the air inside the capsule. At this time, it is preferable to heat the capsule. After deaeration, the deaeration pipe 5 is pressure-bonded and sealed, and then HIP treatment is performed.
第２図はHIP処理後のカプセルの説明図（脱気管図示
省略）であり、カプセルの収縮は軸方向に集中してお
り、径方向の収縮はほとんど生じない。カプセル中の混
合粉末は400〜660℃の固相域あるいは固液共存域の温度
でHIP処理を行うことにより加圧焼結され、所期の複合
材となっている。適宜の切断機械によりカプセルを除去
し、複合素材を円筒状に精整加工することにより製品が
得られる。FIG. 2 is an explanatory view of the capsule after the HIP treatment (deaeration tube is not shown). The contraction of the capsule is concentrated in the axial direction, and the contraction in the radial direction hardly occurs. The mixed powder in the capsule is pressure-sintered by HIPing at a temperature in the solid-phase or solid-liquid coexistence range of 400 to 660 ℃, resulting in the desired composite material. The product is obtained by removing the capsules by an appropriate cutting machine and adjusting the composite material into a cylindrical shape.
次に具体的実施例を掲げる。 Next, specific examples will be given.
（１） 2024Al合金粉末とSiCウィスカとからなる均一
混合粉末を調整した。SiCウィスカの混合比は体積率で2
0％とした。Al合金粉末はアトマイズ粉末であり、分級
により粒径44μｍ以下のものを使用した。(1) A uniform mixed powder composed of 2024 Al alloy powder and SiC whiskers was prepared. Volume ratio of SiC whiskers is 2
It was set to 0%. The Al alloy powder was atomized powder, and the one having a particle size of 44 μm or less was used by classification.
（２） 実施例として第１図のような側壁部が蛇腹状の
軟鋼製カプセルを準備した。外径104mm、内径77mm、長
さ300mm、蛇腹のピッチ10.5mm、内厚1mmである。網体は
SUS製金網を用いた。(2) As an example, a mild steel capsule having a bellows-like side wall portion as shown in FIG. 1 was prepared. The outer diameter is 104 mm, the inner diameter is 77 mm, the length is 300 mm, the bellows pitch is 10.5 mm, and the inner thickness is 1 mm. The net is
A SUS wire mesh was used.
一方、従来例として側壁部が管状の軟鋼製カプセルを
準備した。内径95mm、長さ190mm、肉厚2mmである。On the other hand, as a conventional example, a mild steel capsule having a tubular side wall was prepared. The inner diameter is 95 mm, the length is 190 mm, and the wall thickness is 2 mm.
尚、混合粉末の充填に当っては、両カプセルとも蓋体
を溶接していないものを使用した。When filling the mixed powder, both capsules were used without lids welded.
（３） 両カプセルに（１）の混合粉末を充填して、蓋
板を溶接し、加熱下で脱気管よりカプセル内の空気を脱
気し、密封した。実施例の場合、混合粉末は加圧するこ
となく棒材によりしめる程度に止どめ、充填率は36％で
あった。一方、従来例の場合、混合粉末の投入後、プレ
スにより加圧して充填率を65％まで高めた。(3) Both capsules were filled with the mixed powder of (1), the lid plate was welded, the air in the capsules was degassed from the degassing tube under heating, and the capsules were sealed. In the case of the example, the mixed powder was stopped to the extent that it could be squeezed by the rod without pressing, and the filling rate was 36%. On the other hand, in the case of the conventional example, after the mixed powder was charged, pressure was applied by the press to increase the filling rate to 65%.
（４） 両カプセルにHIP処理を施した。処理条件は、4
80℃、1500kgf/cm2とした。その結果、カプセルは実施
例が第２図（参考写真１参照）、従来例が第３図（参考
写真２参照）のように収縮変形した。実施例の場合、胴
部周方向にくびれや不規則な収縮が生じず、均一な収縮
が可能であった。(4) Both capsules were subjected to HIP treatment. The processing condition is 4
The temperature was 80 ° C and 1500 kgf / cm 2 . As a result, the capsule was shrunk and deformed as shown in FIG. 2 (see reference photograph 1) of the example and FIG. 3 (see reference photograph 2) of the conventional example. In the case of the example, no constriction or irregular shrinkage occurred in the body circumferential direction, and uniform shrinkage was possible.
（５） カプセルを除去し、素材より可能な限りの最大
径の円柱体を削り出したところ、実施例の歩留りは約92
％であったが、従来例のものでは68％であった。(5) When the capsule was removed and a cylindrical body with the maximum diameter possible was cut out from the material, the yield of the example was about 92.
%, But 68% in the conventional example.
（６） 実施例及び従来例の複合材にT6熱処理を施し
た。処理後の機械的性質を第１表に示す。(6) The composite materials of the example and the conventional example were subjected to T6 heat treatment. The mechanical properties after the treatment are shown in Table 1.
同表より、実施例の複合材は従来例に対して何ら遜色
がなく、機械的性質も良好なことが知られる。 From the table, it is known that the composite materials of the examples are comparable to the conventional examples and have good mechanical properties.
（７） 同様にして、種々の寸法のカプセル、混合粉末
を用いて複合材をHIP成形した。その結果を第２表に示
す。試料No.1〜８は実施例、No.9は従来例である。ま
た、同表において、混合粉末の種類は下記の通りであ
り、強化材粉末の混合比はすべて20vol％とした。(7) In the same manner, the composite material was HIP molded using capsules of various sizes and mixed powders. Table 2 shows the results. Samples Nos. 1 to 8 are examples and No. 9 is a conventional example. Further, in the same table, the types of mixed powders are as follows, and the mixing ratio of the reinforcing material powders was all 20 vol%.
Ａ…前記（１）のもの Ｂ…6061Al合金粉末、SiCウィスカ Ｃ…7075Al合金粉末、SiCウィスカ Ｄ…2024Al合金粉末、SiC粒子 Ｅ…6061Al合金粉末、SiC粒子 第２表に示すとうり、本発明により成形したNo.1〜８
はカプセル充填率がすべて50％未満と低いにも拘わら
ず、製品の削り出し歩留りがすべて90％を越え、顕著な
歩留りの向上を図ることができた。A: the above (1) B ... 6061 Al alloy powder, SiC whisker C ... 7075 Al alloy powder, SiC whisker D ... 2024 Al alloy powder, SiC particles E ... 6061 Al alloy powder, SiC particles As shown in Table 2, Nos. 1 to 8 molded according to the present invention
Although all the capsule filling rates were as low as less than 50%, the machined yields of the products all exceeded 90%, and it was possible to significantly improve the yield.
（発明の効果） 以上説明した通り、本発明の成形方法によれば、HIP
処理用カプセルの側壁部を軸方向に収縮する蛇腹体で形
成したことにより、HIP時にカプセルの径方向をほとん
ど収縮させることなく、軸方向を集中的に収縮させるこ
とができ、複合素材より円柱形状の製品を削り出した場
合、製品歩留りを著しく向上させることができる。ま
た、軸方向の収縮を大きく取ることも容易であり、従っ
てカプセルへの粉末の充填も低充填率でよく、従来必要
とされた充填時の加圧工程を省略することができる。(Effects of the Invention) As described above, according to the molding method of the present invention, HIP
By forming the side wall of the processing capsule with a bellows body that contracts in the axial direction, it is possible to concentrate the axial direction with almost no contraction in the radial direction of the capsule during HIP. When the above product is carved out, the product yield can be significantly improved. In addition, it is easy to take a large amount of axial shrinkage, so that the powder can be filled into the capsules at a low filling rate, and the pressurizing step required at the time of filling can be omitted.
更に、カプセルの収縮が均一であり、かつ加圧充填を
要しないため、要求された製品寸法に適合したカプセル
の設計が可能となり、生産性の向上に寄与すること著大
である。Furthermore, since the capsules shrink uniformly and pressure filling is not required, it is possible to design capsules that meet the required product dimensions, which is a significant contribution to improving productivity.
第１図は本発明の実施するためのHIP処理用カプセルの
断面図、第２図は同カプセルのHIP処理後の外形正面説
明図、第３図はHIP処理後の従来の円筒状カプセル外形
正面説明図、第４図は第３図のＡ−Ａ線断面図である。 １……カプセル、２……側壁部、３……蛇腹体、９……
混合粉末。FIG. 1 is a cross-sectional view of a HIP treatment capsule for carrying out the present invention, FIG. 2 is an explanatory front view of the capsule after HIP treatment, and FIG. 3 is a conventional cylindrical capsule exterior front after HIP treatment. Explanatory drawing and FIG. 4 are sectional views taken along the line AA of FIG. 1 ... Capsule, 2 ... Side wall, 3 ... Bellows, 9 ...
Mixed powder.
Claims (1)
と強化材粉末との混合粉末を円筒状カプセルに充填し脱
気し密封した後、熱間等方圧加圧により加圧成形するAl
基複合材の成形方法において、 前記カプセルはその側壁部が軸方向に収縮する蛇腹体で
形成されていることを特徴とするAl基複合材の成形方
法。1. An aluminum powder which is a mixture of aluminum or aluminum alloy powder and a reinforcing material powder is filled in a cylindrical capsule, deaerated and hermetically sealed, and then press-molded by hot isostatic pressing.
In the method for forming a base composite material, the side wall portion of the capsule is formed of a bellows body that contracts in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1037032A JP2535401B2 (en) | 1989-02-15 | 1989-02-15 | Forming method of Al-based composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1037032A JP2535401B2 (en) | 1989-02-15 | 1989-02-15 | Forming method of Al-based composite material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02217404A JPH02217404A (en) | 1990-08-30 |
| JP2535401B2 true JP2535401B2 (en) | 1996-09-18 |
Family
ID=12486293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1037032A Expired - Lifetime JP2535401B2 (en) | 1989-02-15 | 1989-02-15 | Forming method of Al-based composite material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2535401B2 (en) |
-
1989
- 1989-02-15 JP JP1037032A patent/JP2535401B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02217404A (en) | 1990-08-30 |
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